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Finding the Fourth Proportional to 216,871.56, 325,805.76 and 153,848.16

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Solution

The fourth proportional to 216,871.56, 325,805.76 and 153,848.16 is: 231,125.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,871.56 : 325,805.76 = 153,848.16 : x
  2. Step 2: Convert to fraction form
    216,871.56/325,805.76 = 153,848.16/x
  3. Step 3: Cross multiply
    216,871.56x = 325,805.76 × 153,848.16
  4. Step 4: Simplify right side
    216,871.56x = 50,124,616,693.40
  5. Step 5: Solve for x
    x = 50,124,616,693.40/216,871.56
  6. Step 6: Final answer
    x = 231,125.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.